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参数资料
| 型号： | GM-205810-000 |
| 厂商： | DeLorme |
| 文件页数： | 17/18页 |
| 文件大小： | 0K |
| 描述： | MODULE GPS RCVR GPS2058 |
| 产品目录绘图： | GM-205810-000 |
| 标准包装： | 1 |
| 频率： | 1575.42MHz |
| 数据传输率 - 最大： | 57.6 kbps |
| 调制或协议： | GPS |
| 应用： | GPS 接收器 |
| 电流 - 接收： | 50mA |
| 数据接口： | PCB，表面贴装 |
| 存储容量： | 16kB 闪存 |
| 天线连接器： | PCB，表面贴装 |
| 电源电压： | 3 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 40 引脚 |
| 包装： | 剪切带 (CT) |
| 其它名称： | GM-205810-000CT |
Command: System Control Set A, Return Estimated Position Error
Format: $PDME,12,n<cr><If>
Variables: n = 5
Return: “$PDME,12,<horizontal error>,<vertical error>”
Operation: Returns a running statistical estimate of horizontal and vertical positional errors in meters.
Application: Useful for general evaluation of accuracy, particularly if a more elaborate data collection tool is not available to
collect and analyze the data in more detail.
Command: System Control Set A, GPS Leap Seconds
Format: $PDME,12,n<cr><If>
Variables: n = 6
Return: “$PDME,12,<leap second value>”
Operation: Returns the number of leap seconds added to UTC relative to maintain consistency with mean solar time (and GPS
timing).
Application: Valuable information for UTC synchronized GPS systems.
Command: System Control Set B, Software Standby Mode
Format: $PDME,13,n1,n2<cr><If>
Variables: n1 = 1, n2 = any integer
Return: “$PDME,13,OK” if the command is accepted
Operation: This is used to put the module into standby mode; if n2=0, the module enters standby mode indefinitely and
requires an external wakeup (pin 5 high) or reset (pin 6 low) to remove the standby; any other value of n2 is equivalent to the
number of seconds the module remains in standby
Application: This is valuable for power savings. The module drops to less than 100uA during standby, so it may be self timed
off the RTC crystal or left in standby indefinitely until woken up by hardware.
Command: System Control Set B, WAAS Control
Format: $PDME,13,n1,n2<cr><If>
Variables: n1 = 2, n2 = 0 or 1
Return: “$PDME,13,OK” if the command is accepted
Operation: If n2 = 0, WAAS can be disabled; if n2 = 1 (default), WAAS is (re)enabled;
Application: In most cases, leaving WAAS enabled provides the better fix. If WAAS is disabled, the vacated processing channel
can be used to capture information from another GPS satellite.
Command: System Control Set B, Set SBAS Satellite PRN Code
Format: $PDME,13,n1,n2<cr><If>
Variables: n1 = 3, n2 = valid SBAS PRN codes
Return: “$PDME,13,OK” if the command is accepted
Operation: This is used to select a specific WAAS satellite by PRN code. As of this writing, valid WAAS PRNs are 122, 134, 135
and 138 (East Coast). Valid EGNOS satellites are 120, 124 and 126. Valid MSAS satellites are 129 and 137.
Application: This can be used to improve the fix time for WAAS (by eliminating the need for hunting) or to improve a fix if the
module is located on the boundary where two SBAS satellites are available and one is obscured.
Command: System Control Set B, Set RF Test Satellite PRN Code
Format: $PDME,13,n1,n2<cr><If>
Variables: n1 = 3, n2 = 0 – 11 (GPS correlator channel number)
Return: “$PDME,13,OK” if the command is accepted
Operation: This is used to select a specific satellite for the RF Test (NMEA) Message (see section on “NMEA Messaging
Configuration”)
Application: This is a diagnostic which will return the PRN, center frequency, phase error and CN0 (gain) of the satellite in that
GPS correlator channel.
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